MIPS: Loongson: Fix potential NULL dereference in loongson3_platform_init()
[ Upstream commit 72d052e28d1d2363f9107be63ef3a3afdea6143c ]
If kzalloc fails, it should return -ENOMEM, otherwise may trigger a NULL
pointer dereference.
Fixes: 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
diff --git a/arch/mips/loongson64/loongson-3/platform.c b/arch/mips/loongson64/loongson-3/platform.c
index 25a97cc..0db4cc3 100644
--- a/arch/mips/loongson64/loongson-3/platform.c
+++ b/arch/mips/loongson64/loongson-3/platform.c
@@ -31,6 +31,9 @@
continue;
pdev = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
+ if (!pdev)
+ return -ENOMEM;
+
pdev->name = loongson_sysconf.sensors[i].name;
pdev->id = loongson_sysconf.sensors[i].id;
pdev->dev.platform_data = &loongson_sysconf.sensors[i];